Re: [Xen-devel] [PATCH v4 3/5] vpci/msix: carve p2m hole for MSIX MMIO regions

2018-11-20 Thread Roger Pau Monné
On Mon, Nov 19, 2018 at 07:56:18AM -0700, Jan Beulich wrote: > >>> On 14.11.18 at 12:57, wrote: > > Make sure the MSIX MMIO regions don't have p2m entries setup, so that > > accesses to them trap into the hypervisor and can be handled by vpci. > > > > Commit 042678762 ("x86/iommu: add map-reserve

Re: [Xen-devel] [PATCH v4 3/5] vpci/msix: carve p2m hole for MSIX MMIO regions

2018-11-19 Thread Jan Beulich
>>> On 14.11.18 at 12:57, wrote: > Make sure the MSIX MMIO regions don't have p2m entries setup, so that > accesses to them trap into the hypervisor and can be handled by vpci. > > Commit 042678762 ("x86/iommu: add map-reserved dom0-iommu option to > map reserved memory ranges") added mappings fo

[Xen-devel] [PATCH v4 3/5] vpci/msix: carve p2m hole for MSIX MMIO regions

2018-11-14 Thread Roger Pau Monne
Make sure the MSIX MMIO regions don't have p2m entries setup, so that accesses to them trap into the hypervisor and can be handled by vpci. Commit 042678762 ("x86/iommu: add map-reserved dom0-iommu option to map reserved memory ranges") added mappings for all the reserved regions into the PVH Dom0